混合工质电动汽车空调全生命周期气候性能分析  

Life Cycle Climate Performance Analysis of Air Conditioning System in Electric Vehicle Charged with Mixed Refrigerant

作　　者：周峰[1,2] 田旭文[1,2] 李红旗 Zhou Feng;Tian Xuwen;Li Hongqi(Department of Refrigeration and Cryogenics Engineering,Beijing University of Technology,Beijing 100124;The Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Ministry of Education of China,Beijing 100124)

机构地区：[1]北京工业大学制冷与低温工程系,北京100124 [2]传热强化与过程节能教育部重点实验室,北京100124

出　　处：《汽车工程》2024年第9期1707-1714,共8页Automotive Engineering

摘　　要：空调作为整车系统中环境调控的关键子系统,其全生命周期的碳排放对于电动汽车的环保和排放要求至关重要。本文结合汽车空调系统全生命周期气候性能LCCP模型及相关数据,对全国各省份电动汽车空调系统的LCCP情况进行分析,同时对两种不同制热方案以及不同电力碳强度下的LCCP进行了比较分析。结果表明,RE170/R134a低GWP混合工质(二甲醚与R134a质量分数比90∶10)替换后电动汽车空调LCCP值降低了11.2%~28.1%,而采用热泵替换PTC电加热器后电动汽车空调LCCP值降低了0~33.1%,此外,随着未来我国电力碳强度与电动汽车保有量的变化,至2035年单辆车的LCCP值将会下降31.7%~39.3%,而全国整体电动汽车LCCP值将大幅上升。Air conditioning system as a key subsystem of environmental regulation within the entire vehicle system,the carbon emission of air conditioning system throughout its entire lifecycle is crucial for meeting the environmental protection and emission requirement of electric vehicle.Combining the life cycle climate performance(LCCP)model of electric vehicle air conditioning system with relevant data,the LCCP values in different provinces of China are analyzed in this paper.Besides,the LCCP values under two different heating schemes and different carbon intensities of electricity are compared.The results show that low-GWP mixed refrigerant RE170/R134a(RE170 to R134a mass fraction ratio 90∶10)can lead to a decrease in LCCP values for electric vehicle air conditioning system by 11.2%to 28.1%in China.Replacing the PTC heater with the heat pump results in a decrease in LCCP values by 0 to 33.1%.In addition,considering the future changes in China's carbon intensity of electricity and the proliferation of electric vehicles,it is anticipated that the LCCP values for an individual vehicle by 2035 will decrease by 31.7%to 39.3%,while the gross electric vehicle LCCP values in China will increase significantly.

关 键 词：低GWP混合工质 全生命周期气候性能 空调系统 电动汽车 

分 类 号：U463.851[机械工程—车辆工程] U469.72[交通运输工程—载运工具运用工程]